Redhat /CentOS启动DockeRservice docker start报错 但 docker -d 可以启动

Question

Redhat Enterprise 7 /CentOS-7
启动docker报错如下
sudo service docker start

Redirecting to /bin/systemctl start docker.service
Job for docker.service failed. See 'systemctl status docker.service' and 'journalctl -xn' for details.

但使用sudo docker -d 可以启动

[rickqi@rickqi ~]$ sudo docker -d

INFO[0000] Listening for HTTP on unix (/var/run/docker.sock)
ERRO[0000] WARNING: No --storage-opt dm.thinpooldev specified, using loopback; this configuration is strongly discouraged for production use
INFO[0000] [graphdriver] using prior storage driver "devicemapper"
WARN[0000] Running modprobe bridge nf_nat br_netfilter failed with message: , error: exit status 1
INFO[0000] Firewalld running: true
INFO[0000] Loading containers: start.
.............................................................
INFO[0000] Loading containers: done.
INFO[0000] Daemon has completed initialization
INFO[0000] Docker daemon commit=446ad9b/1.7.1 execdriver=native-0.2 graphdriver=devicemapper version=1.7.1